Alert archive / North Carolina / Special Weather Statements in 2017
Special Weather Statement, NWS Raleigh, NC
NWS Raleigh, NC issued this special weather statement at Aug 12, 2017, 5:32 AM EDT for Wilson County, North Carolina. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 12, 2017, 5:32 AM EDT (09:32 UTC)
- Expired
- Aug 12, 2017, 6:30 AM EDT
- In force
- 58 min
- Issued by
- NWS Raleigh, NC
County Wilson County, NC
The radar
The Raleigh/Durham radar (KRAX), 41 km from the middle of the area, began a volume at 09:36 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 9.5 hours before the alert went out and 172 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 824 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Raleigh, NC wrote its last area forecast discussion before this special weather statement went out at Aug 12, 4:07 AM EDT, 1 hour 25 minutes earlier.
Area forecast discussion, Aug 12, 4:07 AM EDT, 1 hour 25 minutes before
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</html>Hazardous weather outlook, Aug 12, 4:18 AM EDT, 1 hour 14 minutes before
Hazardous Weather Outlook National Weather Service Raleigh NC 418 AM EDT Sat Aug 12 2017 NCZ007>011-021>028-038>043-073>078-083>086-088-089-130830- Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance- Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake- Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson- Richmond-Scotland-Hoke-Cumberland-Sampson- 418 AM EDT Sat Aug 12 2017 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and Tonight. A very moist and humid air mass over NC will favor repeated rounds of showers and thunderstorms with heavy rain through tonight. Localized flooding may result. .DAYS TWO THROUGH SEVEN...Sunday through Friday. A stationary front and continued very moist and humid air mass over NC will favor repeated rounds of showers and thunderstorms with heavy rain through the middle of the week. The cumulative effects of the rain may result in flooding. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report areas of high water, particularly if it results in flooded and impassable or closed roads.
In the hours before
Special weather statement, Aug 12, 5:32 AM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 12:16 AM EDT | Areal Flood Advisory | RAH | Durham, Granville, Wake | 3 hr |
| Aug 12, 2:11 AM EDT | Areal Flood Advisory | RAH | Franklin, Wake | 4 hr |
| Aug 12, 3:20 AM EDT | Areal Flood Advisory | RAH | Granville, Vance | 3 hr |
| Aug 12, 5:23 AM EDT | Areal Flood Advisory | RAH | Franklin, Johnston, Nash, Wilson | 4 hr |
| Aug 12, 5:26 AM EDT | Areal Flood Advisory | RAH | Granville, Vance, Warren | 3 hr |
| Aug 12, 7:45 AM EDT | Special Weather Statement | RAH | Edgecombe | 45 min |
| Aug 12, 7:51 AM EDT | Special Weather Statement | RAH | Wayne | 54 min |
| Aug 12, 12:45 PM EDT | Special Weather Statement | RAH | Edgecombe, Halifax, Sampson, Wayne, Wilson | 90 min |
| Aug 12, 3:11 PM EDT | Special Weather Statement | RAH | Granville, Vance | 64 min |
| Aug 12, 3:33 PM EDT | Special Weather Statement | RAH | Nash | 57 min |
| Aug 12, 4:36 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Nash, Wilson | 54 min |
| Aug 12, 5:26 PM EDT | Special Weather Statement | RAH | Wilson | 64 min |
| Aug 12, 6:27 PM EDT | Special Weather Statement | RAH | Sampson, Wayne | 93 min |
| Aug 12, 6:44 PM EDT | Special Weather Statement | RAH | Sampson | 61 min |
| Aug 12, 6:50 PM EDT | Severe Thunderstorm Warning | RAH | Sampson | 30 min |
Nearby
Special Weather Statements in North Carolina, 2017Every special weather statement in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.